Rubber overshoe



(No Model.)

B. P. BIOKPORD. RUBBER OVERSHOE.

No. 437,639. Patented Sept. 30. 1890.

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UNITED STATES PATENT OFFICE.

ERSKINE F. BIOKFORD, OF MALDEN, MASSACHUSETTS, ASSIGNOR 0 THE BOSTON RUBBER SHOE COMPANY, OF MASSACHUSETTS.

V RUBBER OVERSHOE.

SPECIFICATION forming part of Letters Patent No. 437,639, dated September 30, 1890. Application filed June 16,1890. Serial No. 365,562. (No model.)

.To all whom it may concern.-

Be it known that I, ERSKINE F. BIOKFORD, of Malden, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Rubber Overshoes, of which the following is a specification.

This invention relates to that class of rubber overshoes termed footholds. As the rear end of the sole of a foothold terminates at a point under the instep water, mud, &c., sometimes work into the overshoe at that point. My invention has for its object to obviate this difiiculty and to keep the sole of the inner shoe dry and free from dirt or moisture.

In the accompanying drawings, in which similar letters of reference indicate like parts, Figure 1 is a side elevation showing my improved foothold in position on a shoe. Fig. 2 is a similar View, with my foothold in longitudinal vertical section.

A represents the upper, and B the sole of the foothold. O is the strap which extends therefrom around the heel. The point I) is that atwhich the sole of the foothold usually terminates. At this point there is almost invariably a space, as 6, between the sole of the foothold and the sole of the shoe, by means of which water, &c.,is liable to enter the foothold. At this point therefore I in this invention provide the extension B. This extension is not molded on a line with the sole B, but at an angle with it, as shown, so that its edge bears directly against and hugs the sole Eof the shoe. As the shoe and foothold work relatively while the wearer is walking, the space 6 may increase or diminish; but'the edge B" is always pressing against the shoesole E, and effectively keeps out the water. It will be observed that the sole of the foot hold is not thickened or built up or upon in any manner nor stiffened, but that it is supplemented by an extension which is of the same thickness as the sole, but at an obtuse angle therewith and whose free edge presses against the shoe-sole at an angle toward the heel.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

The improved rubber sandal described, comprising the usual upper, and the sole B, provided with the extension B, said extension being integral with the sole and applied to its rear edge under the instep to project upwardly at an obtuse angle therewith,whereby its edge B presses against the sole E of the shoe at that point for the purpose of preventing the admission of moisture, substantially as set forth.

ERSKINE F. BIOKFORD.

Witnesses:

HENRY W. WILLIAMS, J. M. HARTNETT. 

